PS Magazine - TB 43-PS-677
PS, The Preventative Maintenance Monthly
ISSUE 677
APRIL 2009
5
PS 677
APR 09
Dear Editor,
Installing the powerpack on an M88A1 recovery vehicle is a tough, time-
consuming job for mechanics. The last thing you need is anything that makes
the job harder.
Unfortunately, the procedure for meshing the final drive and transmission
is difficult and cumbersome. Steps 25 and 26 in WP 0098 00-16 of TM
9-2350-256-20-1 (Nov 05) have you use a screwdriver and a piece
of wire to lift and push the coupling flange toward the steer clutch housing
while also using a second screwdriver to turn the steering tie shaft to
engage the gear teeth.
The first tool is made of 1-in angle iron and two pieces of
1
/
8-in thick
steel plate welded together for support. The second tool is made of
5
/
8-in
steel rod. All measurements are in inches.
12”
8
1
/
2
”
1
1
/
2
”
1
1
/
2
”
Back side
Front side
3
1
/
2
”
7
1
/
4
”
9
1
/
2
”
10
1
/
4
”
15”
12”
7”
1”
7
1
/
4
”
10
1
/
4
”
8
1
/
2
”
3
1
/
2
”
20”
12”
20”
1
1
/
2
”
It’s a tough job in a tight space, especially because it takes more than
one person to do it. Prying with a screwdriver is a good way to scar the
coupling. It’s also easy to accidentally drop one or both of the screwdrivers
into the hull. If you can’t fish the dropped screwdriver out, you have to pull
the pack and start all over again.
We’ve designed two special tools that makes this job much easier. And
there’s no danger of scarring the coupling or having to worry about dropping
a tool into the hull.
TOOl±1
Back side end
of plate
M±±A²
Recovery
Vehicles…
with
New Tools
Job
Not
So Tough
aren’t you
going to
reinstall my
powerpack?
you
bet!
and we’ve
got just
the tools
for the
job!
One person
pulls up on
coupling
with wire
while
wedging
with Frst
screw-
driver…
…while another person uses second
screwdriver to turn steering tie shaft
²
³
´µ
²
³
±µ
677.04-05.indd
1-2
2/23/09
2:44:02 PM
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